MediaWiki up to 1.31.0/1.30.0/1.29.2/1.27.4 wgRateLimits access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaWiki up to 1.31.0/1.30.0/1.29.2/1.27.4. It has been declared as critical. This issue affects some unknown processing. The manipulation of the argument wgRateLimits results in access control. This vulnerability was named CVE-2018-0503. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in MediaWiki up to 1.31.0/1.30.0/1.29.2/1.27.4 (Content Management System). Affected is some unknown processing. The manipulation of the argument wgRateLimits with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.

The bug was discovered 09/20/2018. The weakness was presented 10/04/2018 (Website). The advisory is shared for download at lists.wikimedia.org. This vulnerability is traded as CVE-2018-0503 since 11/26/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. Required for exploitation is a authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 117652 (FreeBSD : mediawiki -- multiple vulnerabilities (be1aada2-be6c-11e8-8fc6-000c29434208)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277559 (Fedora Security Update for mediawiki (FEDORA-2018-edf90410ea)).

Upgrading to version 1.31.1, 1.30.1, 1.29.3 or 1.27.5 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117652). See VDB-124789, VDB-124790 and VDB-124795 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117652
Nessus Name: FreeBSD : mediawiki -- multiple vulnerabilities (be1aada2-be6c-11e8-8fc6-000c29434208)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.31.1/1.30.1/1.29.3/1.27.5

Timelineinfo

11/26/2017 🔍
09/20/2018 +297 days 🔍
09/22/2018 +2 days 🔍
09/24/2018 +2 days 🔍
10/04/2018 +9 days 🔍
10/04/2018 +0 days 🔍
10/05/2018 +1 days 🔍
05/22/2023 +1690 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: RHSA-2019:3142
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0503 (🔍)
GCVE (CVE): GCVE-0-2018-0503
GCVE (VulDB): GCVE-100-124788

OVAL: 🔍

SecurityTracker: 1041695

See also: 🔍

Entryinfo

Created: 10/05/2018 07:06
Updated: 05/22/2023 09:20
Changes: 10/05/2018 07:06 (73), 03/29/2020 16:58 (2), 05/22/2023 09:20 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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